Measurement's report Xiaomi Mi A1 Neutron - Reference Audio Analyzer

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Navigating through reports of Xiaomi Mi A1 (Click to open)
Xiaomi Mi A1 is available in reports and services. You are in a professional report.

Information for entry level users

    reports for a newbie (Headphone amplifier)
    The automatic selection of the optimal AMP models

    Information for all

    Soft players and USB transports

    Versus of characteristics

    Information for professionals
      reports for a pro (Headphone amplifier)
      reports for a pro (DAC Line Out)
      Comparison of on-line graphs


      Quick jump to the schedules in this pro report: Mi A1 Neutron
        Spectra vs Amplitude

        Xiaomi Mi A1

        Neutron
        About this report
        This is a report for professionals with a suite of test of headphone amplifier.
        You can see a simple report for "dummies" with explanations of the main characteristics for Xiaomi Mi A1 Neutron

        A suite of tests for a headphone amplifier can be applied to just a universal output without a formal presence of an amplifier, if in this mode you can connect headphones to this output. Based on the results of the tests, you can understand the real picture, is the output powerful enough or not, with the initial data on the circuitry as a "black box".

        Line-out, differences from the output for headphones and speakers

        Advantages and disadvantages of balanced amplifiers

        Test report - general data Xiaomi Mi A1 (as headphone amplifier)

        Frequency response, Impedance and Frequency response with standard headphones

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        Voltage levels from the load at the output of the amplifier

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        Average value of impedance band in 40 Hz - 15 kHz1.3ohm
        Voltage:
        Linear Mode / Maximum or before clipping level         		-0.0/1.0dBV
        1.0/1.1VRMS
        Current:
        Linear Mode / Maximum or before clipping level        		9.4/32.3dB(mA)
        3.0/41.1mA





        Brief information

        Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.





        Frequency response Xiaomi Mi A1 Neutron (as headphone amplifier)

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        Range

        Channel:LeftRight
        Variation in frequency response in band from 40 Hz - 15 kHz -0.1, +0.1-0.1, +0.1dB



        Brief information

        Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.

        On the frequency response comparison page, there is an export option and additional tools for adjusting the frequency response



        Impedance Xiaomi Mi A1 Neutron (as headphone amplifier)

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        Channel

        Channel:LeftRight
        Impedance average in band from 40 Hz - 15 kHz1.3 1.3ohm
        The minimum value in band from 40 Hz - 15 kHz1.3 1.3ohm
        The maximum value in band from 40 Hz - 15 kHz1.3 1.4ohm


        Comparison of basic characteristics AMPs


        Brief information

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        Crosstalk Xiaomi Mi A1 Neutron (as headphone amplifier)

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        Channel

        Range

        Load

        Channel:LeftRight
        Crosstalk @ 1 kHz @ 15.8 ohm -53.0 -46.7dB
        Crosstalk @ 1 kHz @ 24.5 ohm -59.9 -51.9dB
        Crosstalk @ 1 kHz @ 30.5 ohm -66.2 -55.3dB
        Crosstalk @ 1 kHz @ 62.4 ohm -63.9 -73.8dB
        Crosstalk @ 1 kHz @ 100.0 ohm -60.5 -63.9dB
        Crosstalk @ 1 kHz @ 198.9 ohm -59.1 -59.8dB
        Crosstalk @ 1 kHz @ 300.0 ohm -56.4 -57.4dB
        Crosstalk @ 1 kHz @ 763.0 ohm -56.3 -57.0dB
        Crosstalk @ 1 kHz @ Not loaded-56.4 -57.1dB



        Brief information

        Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.



        Crosstalk Phase Xiaomi Mi A1 Neutron (as headphone amplifier)

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        Channel

        Load




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        Frequency response Xiaomi Mi A1 Neutron with resistive load

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        Frequency response of amplifier with resistive load @ 40 Hz - 15 kHz
        Channel:LeftRight
        TEST 16 ? + Xiaomi Mi A1 Neutron 0.00.0dB
        TEST 32 ? + Xiaomi Mi A1 Neutron 0.00.0dB
        TEST 64 ? + Xiaomi Mi A1 Neutron 0.00.0dB
        TEST 126 ? + Xiaomi Mi A1 Neutron 0.00.0dB
        TEST 256 ? + Xiaomi Mi A1 Neutron 0.00.0dB
        TEST 512 ? + Xiaomi Mi A1 Neutron 0.00.0dB



        Brief information

        Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.

        On the frequency response comparison page, there is an export option and additional tools for adjusting the frequency response



        Frequency response Xiaomi Mi A1 Neutron loaded dynamic headphone type

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        Frequency response of amplifier loaded dynamic headphone type @ 40 Hz - 15 kHz
        Channel:LeftRight
        TEST 10000 ? + Xiaomi Mi A1 Neutron 0.00.0dB
        Grado GH4 Limited Edition + Xiaomi Mi A1 Neutron 0.20.2dB



        Brief information

        Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.

        On the frequency response comparison page, there is an export option and additional tools for adjusting the frequency response



        Frequency response Xiaomi Mi A1 Neutron loaded type balance armature headphone type

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        Range

        Frequency response of amplifier loaded type balance armature headphone type @ 40 Hz - 15 kHz
        Channel:LeftRight
        TEST 10000 ? + Xiaomi Mi A1 Neutron 0.00.0dB
        Campfire Audio Andromeda + Xiaomi Mi A1 Neutron 2.22.2dB
        Fearless Audio S8F Freedom + Xiaomi Mi A1 Neutron 1.71.7dB



        Brief information

        Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.

        On the frequency response comparison page, there is an export option and additional tools for adjusting the frequency response



        THD vs load vs output voltage Xiaomi Mi A1 Neutron

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        Channel

        Load

        Harmonic, number

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        Load

        Harmonic, number

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        Load


        Brief information

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        Maximum voltage output level vs load Xiaomi Mi A1 Neutron

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        Type of chart

        RAW coordinates

        Power characteristics of the Voltage Current
        dBVVRMSdB(mA)mA
        Equivalent class A -0.01.09.43.0
        Equivalent class AB -0.01.015.76.1
        Equivalent class B -0.01.031.035.5
        Maximum mode 1.01.132.341.1


        Volume Control TypeDigital
        Optimal range of volume control28.0dB
        Signal/Noise / Maximum98.0/1.0dB/dBV
        Signal/Noise @ -14.9 dBV 32 ohm (1 mW)82.43dB
        Signal/Noise @ -5.2 dBV 300 ohm (1 mW)91.83dB


        Comparison Xiaomi Mi A1 Neutron and another amplifiers by loudness (Volume Level)

        Main characteristics of the Xiaomi Mi A1 Neutron


        Brief information

        Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.



        Maximum voltage output level vs load Xiaomi Mi A1 Neutron

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        RAW coordinates

        Maximum Amplifier Voltage Level
        Load Pure or equal class AOptimal or equal class ABHard or equal class BMax, before clipping
        dBVVRMSdBVVRMSdBVVRMSdBVVRMS
        15.8 ohm -24.80.1-20.80.1-4.80.1-3.80.1
        24.5 ohm -24.50.1-17.50.1-1.50.1-1.50.1
        30.5 ohm -20.40.1-14.40.1-1.40.1-0.40.1
        62.4 ohm -14.20.2-8.20.20.80.20.80.2
        100 ohm -11.10.3-3.10.30.90.30.90.3
        198.9 ohm -5.10.6-0.10.60.90.60.90.6
        300 ohm -3.10.7-0.10.70.90.70.90.7
        763 ohm -0.01.0-0.01.01.01.01.01.0
        Not loaded-0.01.0-0.01.0-0.01.01.01.0



        Maximum level of amplifier current
        Load Pure or equal class AOptimal or equal class ABHard or equal class BMax, before clipping
        dB(mA)mAdB(mA)mAdB(mA)mAdB(mA)mA
        15.8 ohm 11.33.715.35.831.336.632.341.1
        24.5 ohm 7.72.414.75.430.734.330.734.3
        30.5 ohm 9.93.115.96.228.927.929.931.3
        62.4 ohm 9.93.115.96.224.917.524.917.5
        100 ohm 8.92.816.97.020.911.020.911.0
        198.9 ohm 8.92.813.95.014.95.614.95.6
        300 ohm 7.42.310.43.311.43.711.43.7
        763 ohm 2.31.32.31.33.31.53.31.5


        Power
        Load Pure or equal class AOptimal or equal class ABHard or equal class BMax, before clipping
        dBmmWdBmmWdBmmWdBmmW
        15.8 ohm -6.70.2-2.70.513.321.214.326.7
        24.5 ohm -8.40.1-1.40.714.628.814.628.8
        30.5 ohm -5.30.30.71.213.723.714.729.8
        62.4 ohm -2.20.63.82.412.819.212.819.2
        100 ohm -1.10.86.94.810.912.210.912.2
        198.9 ohm 1.91.66.94.97.96.27.96.2
        300 ohm 2.21.65.23.36.24.16.24.1
        763 ohm 1.11.31.11.32.11.62.11.6



        Brief information

        Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.



           

        Spectrum of Total Harmonic Distortion vs Level Xiaomi Mi A1 Neutron (as headphone amplifier)

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        Level

        Range

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        Level

        Range

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        Shift

        dBm

        Range

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        dBV

        Range




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        Spectrum of Multitone Distortion vs Level vs Load Xiaomi Mi A1 Neutron (as headphone amplifier)

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        dBm

        Range

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        dBV

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        Brief information

        Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.



           

        Spectrum of IMD SMPTE vs Level Xiaomi Mi A1 Neutron (as headphone amplifier)

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        Level

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        dBm

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        dBV

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        Brief information

        Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.



           

        Spectrum of IMD CCIF vs Level Xiaomi Mi A1 Neutron (as headphone amplifier)

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        Level

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        Level

        Range

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        dBm

        Range

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        dBV

        Range


        Brief information

        Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.





        More detailed

        Measurements of Xiaomi Mi A1 Neutron were carried out by Roman Kuznetsov on the hardware-software complex RAA.

        The Xiaomi Mi A1 Neutron test was conducted as a black box test, without regard to cost and prestige. This is the basic principle for making measurements, measurement reports and developing tests in RAA.

        I believe that it is important to do not make an absolute assessment of the device, but an aggregate assessment when working together with a headphones and taking into account external factors. This allows you to effectively reveal the potential of the entire set of devices or to make a more optimal choice of components.




        Kuznetsov Roman
        Founder of RAA



        Known by the nickname romanrex
        Аuthor of articles iXBT.com



        Information for Authors. You can freely use the graphics in your articles with a link to us.




        Xiaomi Mi A1 is available in reports and services. You are in a professional report.

        Information for entry level users

          reports for a newbie (Headphone amplifier)
          The automatic selection of the optimal AMP models

          Information for all

          Soft players and USB transports

          Versus of characteristics

          Information for professionals
            reports for a pro (Headphone amplifier)
            reports for a pro (DAC Line Out)
            Comparison of on-line graphs




            Quick jump to the schedule in this report: Neutron






            Original text in Russian page. Translation page is not yet ready

            You can help with translation via the: facebook and feedback.




            Comments

            Commentary view:





            romanrex
            Изображения, медиа и смайлы доступны в исходном чате.
            2019-01-05 02:06:14

            Комментарий к профессиональному отчету Xiaomi Mi A1 Neutron Android 9
            Хороший звук с выводом без искажений видимо окончательно остался в Android 7. Ни в восьмом, ни в девятом звука без искажений нет.
            Reply


            romanrex
            Изображения, медиа и смайлы доступны в исходном чате.
            2019-01-06 14:00:19

            Комментарий к профессиональному отчету Xiaomi Mi A1 Stellio OpenSL On
            У Stellio можно видеть короткую импульсную характеристику от ресемплирования. Это дает более ранний пологий завал АЧХ и соответсвенно более "мягкий" звук.
            Reply


            Cregl
            Изображения, медиа и смайлы доступны в исходном чате.
            2019-01-06 15:02:29

            Комментарий к профессиональному отчету Xiaomi Mi A1 Neutron Android 9

            romanrex 2019-01-05 02:06:14
            Комментарий к профессиональному отчету Xiaomi Mi A1 Neutron Android 9
            Хороший звук с выводом без искажений видимо окончательно остался в Android 7. Ни в восьмом, ни в девятом звука без искажений нет.



            А по USB звук не испортился?
            Reply


            romanrex
            Изображения, медиа и смайлы доступны в исходном чате.
            2019-01-07 12:11:48

            Комментарий к профессиональному отчету Xiaomi Mi A1 Neutron Android 9
            Надо проверять отдельно.
            Reply


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